256Kx8bit chips are 256KB each and cachecheck reports only 32KB of L2, so without looking any further something is definitely way off.
Are you sure your motherboard accepts 256Kx8 chips and that much cache in total?
Also the configuration looks weird to me (4+2? Unless there are more chips not visible in the photo) but I'll let the more knowledgeable guys tackle this.

Thanks, I did think so.

Does below photos of manual help?

https://photos.app.goo.gl/gi87ZjJ4aWdh8PwH9
P. S I notice manual says turbo slows system. Down for old games and software... When I turn turbo on in bios its puts it from 386 to 486 and speeds up... Why is it opposite?

Here are 15 16 jumpers. Little different to how manual shows it.. Not sure if there right... As their back to back not sure which pins are for 16 and 15..
https://photos.app.goo.gl/NVgfRPMr9dK7LKbs6

konc wrote on 2021-03-18, 20:23:

256Kx8bit chips are 256KB each and cachecheck reports only 32KB of L2, so without looking any further something is definitely way off.
Are you sure your motherboard accepts 256Kx8 chips and that much cache in total?
Also the configuration looks weird to me (4+2? Unless there are more chips not visible in the photo) but I'll let the more knowledgeable guys tackle this.

FYI , UM61256 32K x 8-Bit High Speed CMOS SRAM

WazMeister wrote on 2021-03-18, 20:40:

https://photos.app.goo.gl/gi87ZjJ4aWdh8PwH9

What are those schematics of? Are they for your motherboard? The middle schematic lists jumpers to set cache sizes.

For people to you help, what model and revision is your motherboard? Take a few more pictures, one of the full MB, and then photos of each group of numbers with the labels readable. In the only board picture you have I see a group of jumpers, but the labels aren't readable.

weedeewee wrote on 2021-03-18, 20:50:

FYI , UM61256 32K x 8-Bit High Speed CMOS SRAM

Great catch, not all model numbers have their size in them.

SScorpio wrote on 2021-03-18, 20:53:

WazMeister wrote on 2021-03-18, 20:40:

https://photos.app.goo.gl/gi87ZjJ4aWdh8PwH9

What are those schematics of? Are they for your motherboard? The middle schematic lists jumpers to set cache sizes.

For people to you help, what model and revision is your motherboard? Take a few more pictures, one of the full MB, and then photos of each group of numbers with the labels readable. In the only board picture you have I see a group of jumpers, but the labels aren't readable.

I guess OP has this http://geryon.ru/deskmaster_inside1.jpg 😁

Just guessing,
JP13 JP17 set to 2-3
JP14 JP18 set to 2-3
JP15 JP16 set to 1-2
I guess you'll need more jumpers 😀

So, like in your first photo you posted, then skip 2 pins, jumper the next to pins, then skip 1 and jumper the next two pins, same for both rows.

Lots of photos here and video?
https://photos.app.goo.gl/LxcQbxg98GeWhSxc9

Manual for system here
https://drive.google.com/file/d/10yy1aB8ZOyB6 … ew?usp=drivesdk

weedeewee wrote on 2021-03-18, 20:59:

SScorpio wrote on 2021-03-18, 20:53:

WazMeister wrote on 2021-03-18, 20:40:

https://photos.app.goo.gl/gi87ZjJ4aWdh8PwH9

What are those schematics of? Are they for your motherboard? The middle schematic lists jumpers to set cache sizes.

For people to you help, what model and revision is your motherboard? Take a few more pictures, one of the full MB, and then photos of each group of numbers with the labels readable. In the only board picture you have I see a group of jumpers, but the labels aren't readable.

I guess OP has this http://geryon.ru/deskmaster_inside1.jpg 😁

Yes he does, yes..... He does. Think little newer oldet? I have 1 cpu socket with 486 dx2 66

weedeewee wrote on 2021-03-18, 20:50:

konc wrote on 2021-03-18, 20:23:

256Kx8bit chips are 256KB each and cachecheck reports only 32KB of L2, so without looking any further something is definitely way off.
Are you sure your motherboard accepts 256Kx8 chips and that much cache in total?
Also the configuration looks weird to me (4+2? Unless there are more chips not visible in the photo) but I'll let the more knowledgeable guys tackle this.

FYI , UM61256 32K x 8-Bit High Speed CMOS SRAM

So I got wrong ram? I got same ram as auggtesed on these forums.... Doh!

Right, it says 128kb now.. Is that right? Moved jumpers around and added more.

https://photos.app.goo.gl/isrrtiVCiDyJjKdr6

WazMeister wrote on 2021-03-18, 22:39:

Right, it says 128kb now.. Is that right? Moved jumpers around and added more.

That should be correct now. The manual lists UB43 as the Tag with UB48 as Dirty SRAM (schematic has it as ALT), so 32KB x 4 = 128KB, 32KB TAG, 32KB ALT.

Don't think. I notice any diffrence with it added tbh.
Thanks for all the help though

Congrat´s for succesfull work!:)

weedeewee wrote on 2021-03-18, 20:50:

konc wrote on 2021-03-18, 20:23:

256Kx8bit chips are 256KB each and cachecheck reports only 32KB of L2, so without looking any further something is definitely way off.
Are you sure your motherboard accepts 256Kx8 chips and that much cache in total?
Also the configuration looks weird to me (4+2? Unless there are more chips not visible in the photo) but I'll let the more knowledgeable guys tackle this.

FYI , UM61256 32K x 8-Bit High Speed CMOS SRAM

You are right of course, in the first post it says "236x8" (which I assumed it's a typo for 256x8). I didn't even research the chips since it was written so specifically and only explained what 256x8 means, which is definitely not 32KB.

WazMeister you should have taken some measurements/benchmarks before adding the cache. If you previously had zero L2 the difference will be significant, I'm not sure what you expected though and where

These chips look fake to me. The datecode is way off (made in 2015 ??? No way) and the markings are quite dark. Way more than the chip with the white markings which was made in 1997 (more likely). Moreover, the "dot" pattern is different on each chip. Some have two large dots on each side and others don't. This screams fake.

They may be real chips inside. But who knows what brand/specs they were initially and what they went through ...

WazMeister wrote on 2021-03-18, 22:39:

Right, it says 128kb now.. Is that right? Moved jumpers around and added more.

https://photos.app.goo.gl/isrrtiVCiDyJjKdr6

I did mention you had to skip 2... ? so no idea why it's working , but meh.
the way I read it now, all jumpers are set to 1-2
Reading the schematics with the jumper settings underneath, it should be

--oo--o--
--oo--o--

with -- being a jumper and o an open pin.

but as I said... meh.. I dunno why it works now, oh wait, the 128 is determined by the first two on the left set to 1-2 so yeah...
enjoy.

oh strange, I thought manual explained jumper 1 - 2 for 15, 16, 17 and 18?